122100196005817 has 2 divisors, whose sum is σ = 122100196005818. Its totient is φ = 122100196005816.

The previous prime is 122100196005791. The next prime is 122100196005857. The reversal of 122100196005817 is 718500691001221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 118901163280761 + 3199032725056 = 10904181^2 + 1788584^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122100196005817 is a prime.

It is not a weakly prime, because it can be changed into another prime (122100196005857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61050098002908 + 61050098002909.

It is an arithmetic number, because the mean of its divisors is an integer number (61050098002909).

Almost surely, 2^{122100196005817} is an apocalyptic number.

It is an amenable number.

122100196005817 is a deficient number, since it is larger than the sum of its proper divisors (1).

122100196005817 is an equidigital number, since it uses as much as digits as its factorization.

122100196005817 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 43.

The spelling of 122100196005817 in words is "one hundred twenty-two trillion, one hundred billion, one hundred ninety-six million, five thousand, eight hundred seventeen".